Gurobi 5.0.1 (linux64) logging started Wed Apr 24 02:19:46 2013 Optimize a model with 49840 rows, 49140 columns and 196140 nonzeros Presolve removed 70 rows and 0 columns Presolve time: 0.22s Presolved: 49770 rows, 49140 columns, 196070 nonzeros Variable types: 49070 continuous, 70 integer (70 binary) Root simplex log... Iteration Objective Primal Inf. Dual Inf. Time 6726 6.1898723e+04 6.270809e+02 0.000000e+00 5s 6998 6.1923814e+04 0.000000e+00 0.000000e+00 5s Root relaxation: objective 6.192381e+04, 6998 iterations, 5.49 seconds Nodes | Current Node | Objective Bounds | Work Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time 0 0 61923.8137 0 59 - 61923.8137 - - 5s H 0 0 101862.00000 61923.8137 39.2% - 8s 0 0 84066.4465 0 10 101862.000 84066.4465 17.5% - 14s H 0 0 91393.039459 84066.4465 8.02% - 14s H 0 0 88680.000000 84066.4465 5.20% - 14s 0 0 84849.3061 0 5 88680.0000 84849.3061 4.32% - 15s H 0 0 87781.000000 84849.3061 3.34% - 15s 0 0 84860.0991 0 6 87781.0000 84860.0991 3.33% - 15s H 0 0 87473.000000 84860.0991 2.99% - 15s 0 0 84869.5713 0 4 87473.0000 84869.5713 2.98% - 15s H 0 0 87302.420277 84869.5713 2.79% - 15s H 0 0 86349.000000 84869.5713 1.71% - 15s 0 2 84869.5968 0 4 86349.0000 84869.5968 1.71% - 16s H 2 2 85312.855578 84934.2441 0.44% 150 17s H 3 3 85041.846154 84938.2824 0.12% 150 17s H 4 3 85025.260823 84943.1119 0.10% 170 17s H 5 3 85024.093750 84943.1119 0.10% 155 17s * 7 2 7 84974.000000 84943.1119 0.04% 143 17s Cutting planes: Implied bound: 64 Explored 10 nodes (14205 simplex iterations) in 17.69 seconds Thread count was 1 (of 16 available processors) Optimal solution found (tolerance 1.00e-04) Best objective 8.497400000000e+04, best bound 8.496557647059e+04, gap 0.0099%